if the author can add wit and playfulness in this MC characteristic, she can have more charming personality.
the plot only running on cycle between the duke and the count, this make the story kinda bland, I know this is only a matter of preference... but being so innocent or too innocent is not good for some MC who travel back time, at least a sprouts of hatefulness an revenge is a must. darkness is one of human nature to have too.
this MC is not literally an angel right?